CaseySJ
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Welcome to Windows, where the more things change the more they stay the same!Hi,
I'm trying to build a multiboot system on my new build based on the Gigabyte Z390 Designare.
I have already installed macOS Mojave on a NVMe PCIe SSD (Samsung 870 EVO 500GB) on the M.2 M2P connector
Later I tried to install Windows 10 PRO on a second nvme pcie SSD (Samsung 970 PRO 512GB) on the M.2 M2M:
- both SSDs NVMe PCIe connected
- UEFI BIOS: Windows 8/10 Features -> Windows 8/10, CSM Support -> Enabled
- created a Windows 10 USB installer with Rufus according to this guide:
https://www.windowscentral.com/how-create-windows-10-usb-bootable-media-uefi
support#create_windows10_uefi_rufus
- initialized the target NVMe PCIe SSD (970 PRO) using disk utility (GPT/HFS + journaled) in macOS Mojave
- After boot from the Windows 10 USB installer, I deleted the HFS+ partition previously created by disk utility in Mojave (preserving the EFI partition)
- selected for Windows 10 installation the unallocated space
Unfortunately, after the first stage, the installation process was interrupted with the error message:
"Windows could not prepare the computer to boot into the next phase of installation. To install Windows, restart the installation"
Restarting the installation process there are the following partition on the target drive:
Unit 0 Partition 1: EFI
Unit 0 Partition 2: Recovery
Unit 0 Partition 3:
Unit 0 Partition 4: MSR (Reserved)
Unit 0 Partition 2: Primary
but it is not impossible to resume the installation trying to format the Primary Partition :
"Setup was unable to create a new system partition or locate an existing partition"
How can i solve this problem?
Thanks in advance for Your help
I was able to overcome this problem by:
- Physically removing my Mojave NVMe SSD.
- Disconnecting the SATA data and power cables from all internal SATA drives.